RD Guillermo A. Molina, Jr. IV led the Team to conduct field assessment on sand and gravel quarry located on the slopes of Mayon Volcano to determine whether quarry activities contributed to the occurrence of the lahar flows that resulted in casualties and massive damages to properties.

The field assessment ran from November 7-15, 2020 which was composed of technical personnel from DENR-V, EMB-V, DPWH-V, and the Provincial Government of Albay. The assessment team was divided into eight sub-teams, with each team having at least one representative from participating agencies that is assigned with their respective area of responsibility.